DTC U0100: Lost Communication with ECM/PCM "A": Procedure

1. Check for DTCs and note any codes that are output. Refer to DTC CHECK/CLEAR .
2. Check the DTC. Refer to DTC CHECK/CLEAR .
3. Recheck for DTC. Refer to DTC CHECK/CLEAR .
   RESULT
   
   

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system DTC is output	B

   HINT: 

   If the CAN communication system DTC U0100 and another DTC are output at the same time, perform troubleshooting for the CAN communication system DTC U0100 first.

B → See step   2 

A → See step   3